In Russian. Chekin, Sergei Sergeevich. Lower Mesozoic crust of weathering of the Irkutsk amphitheater. Moscow: Science, 1973. Nizhnemezozoyskaya kora vyvetrivaniya Irkutskogo amfiteatra. In Russian/Lower Mesozoic weathering crust of the Irkutsk amphitheater. All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books. SKU7068310